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Diffstat (limited to 'board/nocturne_fp/board_rw.c')
| -rw-r--r-- | board/nocturne_fp/board_rw.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/board/nocturne_fp/board_rw.c b/board/nocturne_fp/board_rw.c deleted file mode 100644 index 0a7b38b97d..0000000000 --- a/board/nocturne_fp/board_rw.c +++ /dev/null @@ -1,134 +0,0 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "common.h" -#include "console.h" -#include "fpsensor_detect.h" -#include "gpio.h" -#include "hooks.h" -#include "registers.h" -#include "spi.h" -#include "system.h" -#include "task.h" -#include "util.h" -#include "board_rw.h" - -#ifndef SECTION_IS_RW -#error "This file should only be built for RW." -#endif - -/** - * Disable restricted commands when the system is locked. - * - * @see console.h system.c - */ -int console_is_restricted(void) -{ - return system_is_locked(); -} - -#include "gpio_list.h" - -/* SPI devices */ -struct spi_device_t spi_devices[] = { - /* Fingerprint sensor (SCLK at 4Mhz) */ - { .port = CONFIG_SPI_FP_PORT, .div = 3, .gpio_cs = GPIO_SPI4_NSS } -}; -const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices); - -/* Allow changing the signal used for alt sleep depending on the board being - * used: http://b/179946521. - */ -static int gpio_slp_alt_l = GPIO_SLP_ALT_L; - -static void ap_deferred(void) -{ - /* - * Behavior: - * AP Active (ex. Intel S0): SLP_L is 1 - * AP Suspend (ex. Intel S0ix): SLP_L is 0 - * The alternative SLP_ALT_L should be pulled high at all the times. - * - * Legacy Intel behavior: - * in S3: SLP_ALT_L is 0 and SLP_L is X. - * in S0ix: SLP_ALT_L is X and SLP_L is 0. - * in S0: SLP_ALT_L is 1 and SLP_L is 1. - * in S5/G3, the FP MCU should not be running. - */ - int running = gpio_get_level(gpio_slp_alt_l) && - gpio_get_level(GPIO_SLP_L); - - if (running) { /* AP is S0 */ - disable_sleep(SLEEP_MASK_AP_RUN); - hook_notify(HOOK_CHIPSET_RESUME); - } else { /* AP is suspend/S0ix/S3 */ - hook_notify(HOOK_CHIPSET_SUSPEND); - enable_sleep(SLEEP_MASK_AP_RUN); - } -} -DECLARE_DEFERRED(ap_deferred); - -/* PCH power state changes */ -void slp_event(enum gpio_signal signal) -{ - hook_call_deferred(&ap_deferred_data, 0); -} - -static void spi_configure(enum fp_sensor_spi_select spi_select) -{ - if (spi_select == FP_SENSOR_SPI_SELECT_DEVELOPMENT) { - /* SPI4 master to sensor: PE12/13/14 (CLK/MISO/MOSI) */ - gpio_set_flags_by_mask(GPIO_E, 0x7000, 0); - gpio_set_alternate_function(GPIO_E, 0x7000, GPIO_ALT_SPI); - } else { - gpio_config_module(MODULE_SPI_CONTROLLER, 1); - } - - /* Set all SPI master signal pins to very high speed: pins E2/4/5/6 */ - STM32_GPIO_OSPEEDR(GPIO_E) |= 0x00003f30; - /* Enable clocks to SPI4 module (master) */ - STM32_RCC_APB2ENR |= STM32_RCC_PB2_SPI4; - - if (spi_select == FP_SENSOR_SPI_SELECT_DEVELOPMENT) - spi_devices[0].gpio_cs = GPIO_SPI4_ALT_NSS; - spi_enable(&spi_devices[0], 1); -} - -void board_init(void) -{ - enum fp_sensor_spi_select spi_select = get_fp_sensor_spi_select(); - - /* - * FP_RST_ODL pin is defined in gpio_rw.inc (with GPIO_OUT_HIGH - * flag) but not in gpio.inc, so RO leaves this pin set to 0 (reset - * default), but RW doesn't initialize this pin to 1 because sysjump - * to RW is a warm reset (see gpio_pre_init() in chip/stm32/gpio.c). - * Explicitly reset FP_RST_ODL pin to default value. - */ - gpio_reset(GPIO_FP_RST_ODL); - - ccprints("FP_SPI_SEL: %s", fp_sensor_spi_select_to_str(spi_select)); - - spi_configure(spi_select); - - ccprints("TRANSPORT_SEL: %s", - fp_transport_type_to_str(get_fp_transport_type())); - - /* Use SPI select as a proxy for running on the icetower dev board. */ - if (spi_select == FP_SENSOR_SPI_SELECT_DEVELOPMENT) - gpio_slp_alt_l = GPIO_SLP_ALT_DEV_L; - - /* Enable interrupt on PCH power signals */ - gpio_enable_interrupt(gpio_slp_alt_l); - gpio_enable_interrupt(GPIO_SLP_L); - - /* - * Enable the SPI slave interface if the PCH is up. - * Do not use hook_call_deferred(), because ap_deferred() will be - * called after tasks with priority higher than HOOK task (very late). - */ - ap_deferred(); -} -DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); |